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    METHOD AND APPARATUS FOR HEATING PULPS
    1.
    发明申请
    METHOD AND APPARATUS FOR HEATING PULPS 失效
    加热粉的方法和装置

    公开(公告)号：US20020040771A1

    公开(公告)日：2002-04-11

    申请号：US09509474

    申请日：2000-03-28

    发明人： KARI PELTONEN ,  REIJO VESALA ,  VESA VIKMAN

    IPC分类号： D21B001/12 ,  D21C001/02 ,  D21C007/06 ,  D21C007/08 ,  D21C007/10

    CPC分类号： D21C9/007 ,  D21C9/10

    摘要： A method and apparatus for heating cellulose pulp with steam are provided. Low-pressure (e.g. 3-5 bar (abs.)) steam is supplied into the pulp flowing as a plug flow in such a way that in the flow direction of the pulp, before supplying the low-pressure steam, the pulp is pressurized so that the pulp pressure at the point of the steam introduction is lower than the pressure of the available steam. After the steam is introduced the pulp is mixed with a pressure-raising mixer (such as a fluidizing centrifugal pump) to divide the steam evenly into the pulp and/or to equalize the temperature of the pulp.

    摘要翻译： 提供了一种用蒸汽加热纤维素纸浆的方法和装置。 将低压（例如3-5巴（绝对））蒸汽供应到作为塞子流动的纸浆中，使得在纸浆的流动方向上，在供给低压蒸汽之前，将纸浆加压 使得蒸汽引入点处的纸浆压力低于可用蒸汽的压力。 在引入蒸汽之后，将纸浆与升压混合器（例如流化离心泵）混合以将蒸汽均匀地分配到纸浆中和/或使纸浆的温度相等。

    Method of bleaching and providing papermaking fibers with durable curl
    2.
    发明申请
    Method of bleaching and providing papermaking fibers with durable curl 有权
    漂白和提供造纸纤维耐用卷曲的方法

    公开(公告)号：US20020011317A1

    公开(公告)日：2002-01-31

    申请号：US09793874

    申请日：2001-02-27

    发明人： Jeffrey A. Lee

    IPC分类号： D21B001/12 ,  D21C001/00 ,  D21C001/02

    CPC分类号： D21H11/16 ,  D21C9/007 ,  D21C9/1089 ,  D21C9/163 ,  Y10T428/249921

    摘要： A process for bleaching high bulk cellulosic fiber and producing a durable elevated curl index includes: (a) concurrently bleaching, heat treating and convolving cellulosic fiber pulp at elevated temperature and pressure at high consistency generally under conditions selected so as to preclude substantial fibrillation and attendant paper strength and fiber bonding development; and (b) recovering the pulp wherein the length weighted curl index of the treated fiber is at least about 20% higher than the length weighted curl index of the fiber prior to the heat treatment and convolving thereof. Preferably, the curl imparted to the fiber persists upon treatment for 30 minutes in a laboratory disintegrator at 3000 rpm at 1% consistency at a temperature of 125null F. Moreover, the curl may be imparted to the fiber in a disk refiner at very short residence times, on the order of several seconds or less. In general, the process is carried out in the presence of saturated steam at a pressure of from about 5 to about 150 psig.

    摘要翻译： 用于漂白高体积纤维素纤维并产生持久升高的卷曲指数的方法包括：（a）通常在选择的条件下，在高温度和高压下同时漂白，热处理和卷积纤维素纤维纸浆，以排除基本纤维化和伴随 纸张强度和纤维粘结开发; 和（b）回收纸浆，其中经处理的纤维的长度加权卷曲指数比热处理和卷曲之前的纤维长度加权卷曲指数高至少约20％。 优选地，赋予纤维的卷曲在实验室分解器中在3000rpm下以1％的稠度在125°F的温度下持续处理30分钟。此外，卷曲可以在非常短的圆盘磨浆机中赋予纤维 停留时间，几秒或更少的数量级。 通常，该方法在约5至约150psig的压力下在饱和蒸汽存在下进行。

    Method of bleaching and providing papermaking fibers with durable curl
    4.
    发明申请
    Method of bleaching and providing papermaking fibers with durable curl 有权
    漂白和提供造纸纤维耐用卷曲的方法

    公开(公告)号：US20040016524A1

    公开(公告)日：2004-01-29

    申请号：US10625086

    申请日：2003-07-23

    发明人： Jeffrey A. Lee

    IPC分类号： D21B001/12 ,  D21B001/14

    CPC分类号： D21H11/16 ,  D21C9/007 ,  D21C9/1089 ,  D21C9/163 ,  Y10T428/249921

    摘要： A process for bleaching high bulk cellulosic fiber and producing a durable elevated curl index includes: (a) concurrently bleaching, heat treating and convolving cellulosic fiber pulp at elevated temperature and pressure at high consistency generally under conditions selected so as to preclude substantial fibrillation and attendant paper strength and fiber bonding development; and (b) recovering the pulp wherein the length weighted curl index of the treated fiber is at least about 20% higher than the length weighted curl index of the fiber prior to the heat treatment and convolving thereof. Preferably, the curl imparted to the fiber persists upon treatment for 30 minutes in a laboratory disintegrator at 3000 rpm at 1% consistency at a temperature of 125null F. Moreover, the curl may be imparted to the fiber in a disk refiner at very short residence times, on the order of several seconds or less. In general, the process is carried out in the presence of saturated steam at a pressure of from about 5 to about 150 psig.

    摘要翻译： 用于漂白高体积纤维素纤维并产生持久升高的卷曲指数的方法包括：（a）通常在选择的条件下，在高温度和高压下同时漂白，热处理和卷积纤维素纤维纸浆，以排除基本纤维化和伴随 纸张强度和纤维粘结开发; 和（b）回收纸浆，其中经处理的纤维的长度加权卷曲指数比热处理和卷曲之前的纤维长度加权卷曲指数高至少约20％。 优选地，赋予纤维的卷曲在实验室分解器中在3000rpm下以1％的稠度在125°F的温度下持续处理30分钟。此外，卷曲可以在非常短的圆盘磨浆机中赋予纤维 停留时间，几秒或更少的数量级。 通常，该方法在约5至约150psig的压力下在饱和蒸汽存在下进行。

    Method for production of lignocellulosic composite materials
    5.
    发明申请
    Method for production of lignocellulosic composite materials 审中-公开
    木质纤维素复合材料的生产方法

    公开(公告)号：US20030041965A1

    公开(公告)日：2003-03-06

    申请号：US09999179

    申请日：2001-11-30

    申请人： MARLIT LTD.

    发明人： Efthalia Vergopoulou Markessini ,  Pavlos Mouratidis ,  Edmone Roffael ,  Luc Rigal

    IPC分类号： D21B001/12

    CPC分类号： B27N1/00 ,  B27N3/007 ,  B27N3/28

    摘要： Fibers of annual plants e.g. straw for use in forming composite products are improved by hydrothermal treatment at 40null to 120 null C. with or followed by high shear treatment. The process enables the use of annual plant fibrous materials not hitherto usable successfully.

    摘要翻译： 一年生植物的纤维，例如 用于形成复合产品的秸秆通过在40℃至120℃下进行水热处理而进行改进，随后进行高剪切处理。 该过程使得能够成功使用一年中的植物纤维材料。